DRUG DESCRIPTION. Cardene (nicardipine hydrochloride) is a calcium ion influx inhibitor (slow channel blocker or calcium channel blocker). Cardene I.V. Premixed Injection for intravenous administration contains 20 mg of nicardipine hydrochloride per 200 mL (0.1 mg/mL) in either dextrose or sodium chloride.
Previous studies indicate that the southward migration through Oregon lasts about two months (Herzing and Mate 1984). However, 90% of the whales migrated past Yaquina Head between December 19 and January 23. The northward migration through Oregon is divided in two phases. Phase A, which comprises adults without calves, begins during the last week of February with a peak in mid-March.
When is the Best Time for Whale Watching in Alaska? Whales begin their migration from the warm waters of Mexico in February arriving in Alaska waters in April. Various species of whales can be seen throughout Alaska during the months of May through September.